Draft equalizer



Nov. 5, 1929.

G. JOHNSON DRAFT EQUALIZER Filed July 12, 1926 55heets-Sheet I llllllo I NQV. 5, 1929. G JOHNSON 1,734A36 DRAFT EQUALIZER Filed July 12, 1926 3 Sheets-Sheet 2 INVENTOR NOV. 5, 1929 JQHNSQN 1,734,436

DRAFT EQUALIZER Filed July 12, 1926 3 Sheets-Sheet 3 INVENTOR Patented Nov. 5, 1929 PATENT OFFICE GUST JOHNSON, OF ORRIN, NORTH DAKOTA DRAFT EQUALIZER Application filed July 12,

The object of this invention is to provide a draft equalizer comprising a main draft evener, a supplemental draft evener, connected therewith in the manner disclosed, a doubletree and singletrees connected with one end of the supplemental draft evener, with particular means for connecting another doubletree and singletrees with the supplemental evening device.

With the foregoing and other objects in View, the invention consists in the novel construction and arrangement of elements described, illustrated and claimed, it being understood that modifications may be made 15 within the scope of the claims without departing from the spirit of the invention.

In the drawings forming part of this application,

Figure 1 is a top plan View.

Figure 2 is a view in vertical section on line 22 of Figure 1.

Figure 3 is a view in vertical section on line 3-3 of Figure 1. I

Figure 4 is a fragmentary view of the rear 5 portion of the structure of Figure 1.

Figure 5 is a detail view, in elevation, of the loop member and the mounting means therefor, this device appearing in Figure 1, at the left, in top plan.

Figure 6 is a detail view, with part broken away, showing the position of the chain with reference to adjacent elements, this chain passing thru the loop member of Figure 5.

Figure 7 is a top plan view of an equalizer designed for use with five draft animals.

Figure 8 is a view in elevation of the central portion of the long or supplemental evener, at the central portion of Figure 7.

The main evener includes a somewhat heavy transverse element or bar 10, and metallic plates 11 and 12 extend respectively on the upper and lower sides of element 10, and are connected by member 13,these portions 11, 12 and 13 forming parts ofan integral construction.

Element may be cut away, as shown at 1 1, and a space 15 is provided between the left end of element 10, as illustrated in Figure 3, and the U-portion 13, a pulley wheel 16 be- 1926. Serial 170. 121,952.

ing mounted within the space thus provided, and being carried by a pivotal member 17.

A clevis 18 is secured by means of bolt 19, the latter passing thru the forked portion 18 of the clevis, and also passing thru bar 10 and plates 11 and 12. Bar 10 is cut away centrally as shown in Figure 3, and upper and lower bars 20 and 21 extend into the cutaway portion, and are secured by bolt 19.

A. chain 23 passes around pulley wheel 16 and thru the space between bars 20 and 21, the latter being connected with supplemental evener 25 by means of a bolt 26. While members 20 may be connected at various points between the ends of eveners 11 and 25, in the embodiment of the invention illustrated they are shown as connected substantially at the center of the evener 11 and extending at right angles to said eveners. Supplemental evener 25 carries at one end thereof a U-shaped strap 27 providing a loop thru which chain 23 passes, and the latter passes around pulley wheel 28 and is secured at 29 to the end of element 25, at the left of Figure 1.

Pulley wheel 28 is mounted between plates 29, one being shown in Figure 1, and these elements 29 are secured to doubletree 30, to which singletrees 31 and 32 are connected in any well known manner.

Another doubletree 33 is secured by bars such as 3 1 to the right hand end of supplemental evener 25, and singletrees 36 and 37 are connected with doubletree 33.

A brace or braces, such as 38 are connected 'pivotally at 39 with the main evener, and are also connected pivotally with the supplemental evener 25, at a point between bolt 26 and the right hand end of evener 25.

One of the principal objects being to reduce side draft, and also to equalize the draft, the length of element 25, and the point of pivotal connection between this element and bar or bars 38 is important. By way of illustration, brace or bar 38 is secured in Figure 1 by bolt 40 positioned as shown, that is inwardly from the bolt 34, and between the latter and bolt 26. The chain 23 is secured at the same point 40 by a clevis 23 as shown in Figure 1926, in that it provides for five draft animals instead of four, and that it illustrates the chain or flexible member connected with the front evener at a different point from the point shown in that application, and in application Serial No. 118,571, filed June 25, 1926.

Having described the invention, hat is claimed is 1. In a draft equalizer, a main evener, a second evener of greater length, means extending between and connected to said eveners by pivots, said eveners being swingable about said pivots, a pulley wheel at one end of the main evener, draft means, a chain connected with one end of the second evener and with the draft means and passing around said pulley wheel on the main evener, a second pulley wheel carried by the second evener between its ends, the chain passing over the second pulley wheel, draft means connected with this portion of the chain, and draft means connected with the end of the second evener remote from the end connected with the chain.

2. In a draft equalizer, a main evener, a second evener of greater length than the main evener, means connecting said evener at a plurality of points, a pulley wheel at one end of the main evener, a doubletree, a chain con nected with one end of the second evener and with the doubletree and passing around said pulley wheel on the main evener, a second pulley wheel, carried by the second evener between its ends, the chain passing over the second pulley wheel, a singletree connected with this portion of the chain, in advance of the second evener, and a doubletree connected with the end ofthe second evener remote from the end connected With the chain.

3. In a draft equalizer, a main evener, a second evener, means connecting the eveners at points between the ends thereof, means connected with one end of the main evener and with the second evener between the end thereof and the point of connection of the means first named, a flexible member operatively connected with the second evener substantially at the point of connection of said first mentioned means, a pulley wheel on the other end of the main evener, a doubletree, a second pulley Wheel connected therewith, said flexible member passing over these pulley wheels and being connected with the second evener at one end of said flexible member, and a second doubletree connected with the second evener.

4i. In a draft equalizer, a main evener, a second evener, means connecting the eveners at points between the ends thereof, means,

connected with one end of the main evener the point where the first named connecting means are secured thereto, one end of the second evener being of greater length than the corresponding portion of the main evener on the same side of the central portion of the eveners, a pulley wheel on the other end of the main evener, a doubletree, a second pulley wheel thereon, the chain passing over these pulley wheels and being connected with the second evener at one end of said chain, and a second doubletree connected with the second evener.

5. In a draft equalizer, a main evener, a second evener of greater length, a plurality of means connecting said eveners, apulley wheel at one end of the main evener, draft means, a chain having one end connected to the second evener and movably connected with the draft means and passing around said pulley wheel on the main evener, a sec ond pulley wheel carried by the second evener between its ends, the chain passing over the second pulley wheel, draft means connected with this portion of the chain, and draft means connected with the end of the second evener remote from the end connected with the chain.

6. A draft equalizer comprising a main evener, a second evener, a plurality of rigid means extending between and connected by pivots to said eveners, said eveners being swingable about said pivots, a pulley wheel carried by said main evener, draft means, a chain having one end connected to the second evener and movably connected with the draft means, and passing around said pulley wheel on the main evener, a second pulley wheel carried by the second evener, said chain passing over said second pulley wheel and draft means connected with this portion of the chain in front of the second evener.

GUST JOHNSON.

and with the second evener between the end thereof and the point of connection with the 

